Instrument for electrosurgical treatment in body cavities



G. WOLF ZJGJS? INT FOR ELECTROSURGICAL TREATMENT IN BODY CAVITIES INSTRUIM Filed June 5, 1938 Patented Jan. k 1 91 I I t. 1

1 umrso ins -Tiaras "PATENT oFFlcs 1 I 2,186,187 p j ms'rnUME rFon ELECTROSURGICAL, t

-. I TREATMENTZIN'BODY eAvrrins v Georg Wolf, Berlin, Germany, assignor to the firm Georg Wolf- G. in. b H.-, Berlin; Germany Application June 3, 1938, Serial No. 211,536

- In Germany June '7, 1937 Q '5 Claims. cl. ras -39 245) I have filed an application'in Germany, June '7, trates a thoracoscope according to the invention, v 1937. e Figuresl and 2 show this instrumentin two The present invention concerns operation indifferent elevational sections, the catheter being struments which can be insert'edi'nto body 'caviwithdrawn in Figure 1 and pushed forward in 5 ties, especially thoracoscopes, and are provided Figure 2, e I 5 with a sleeve carrying an elastically attached Figures 3 to 5 represent in side views single lamp, a catheter introducible into ,thissleeve parts of the instrument, and having a cauter, and an inspecting tube v Figure 3 showing the sleeve carrying the lamp,

I which is introducible into the' catheter and Figure 4 showing the catheter carrying the serves for viewing the'body cavity. On account} cauter, and i 10 of the concentricity of the tubes and the elastic .Figure 5 showing the inspection tube "andthe attachment of the'l'anip; these instruments reguide. l 1 1 quire only little space when'beingintroduced into 2 is the sleeve for carrying the lamp. To this a-body cavity and offer the advantage not only of* sleeve 2 is fixed anelastic arm 3 the front end ofa comparatively wide inspecting tube but also of which carries a holder 4 for an incandescent 15 a continuous observation through. this tube dur-' lamp 5. 6 is the'catheter, whose iront end has ing the introduction of'lthe instrument into, a arms i2. for a cauter 13. The exterior diarn body'cavity. h A eter of the catheter 5 corresponds to the interior According to the invention, .these' instruments diameter of the sleeve 2. The 'rearend of the go have a guide which, whenthe instrument. is in catheter 6 is fast with a current distributor I working condition, permits axial displacement, having, a plug socketaa The cauter l3 ends-in and prevents rotation, of the catheter carrying a loop lea which is bent sidewardly. The in the cauter relative to the'sleeve carrying the pe b designated whiehthas. at 5-175 lamp. Not only can the cauter, which '15 gen rear end an eye-piece 2| and, at its front endan erally a wire 1oop,be given the mostsuitable posiobjective 22, is so dimensioned that it can be in- 5 tion when the instrumentis being introduced into troduced into the catheter 6- T0 the eyerpiece a body cavity, so that the cauter is prevented end of the inspection tube 28 is fixed a ring 2011 from injuring the patient, but this cauter can fa With a red 3 having the form of a forkbe adjusted to a certainextent also during the e lower, e p y 0f the fork 23 can 30 operation. tain apin 25, whichis fixed to a ring 24 fast 30 The loop of the cauter is suitably bent side- W t t e S eeve d S clamped to h ring- 24 wardly, so that it does not disturb axial displaceby means of a screw 26- T e ar s of e fork 23 ments of the inspection tube. If bent towards constitute a guide for a slide 21 fast with the disthe lamp,-theloop lies between the lamp'and they tributor I ofithe catheter 6. On account of the inspection tube when the catheter carrying the slide 21, the. e e 6 is a ially disp 35 cauter is drawn back, the loop being thus proand not rotatable. The axial displacement of 'tected exceedingly wellduring the introduction the catheter 6, is limited by the distributor 1, of the instrument into the body cavity. which is arrested by the ring 24 on the sleeve '2 To ensure during the axial displacement'a conandby the in 2 Oh t inspection tube venient handling of the catheter carrying the .When e distributor T1165 ag'ainet 8 cauter, it is advisable to provide that the inspech p 0f the cauter 53-15 hidden 1 tion tube can be fixed in any desired position twee t e a p an the front end of the relatively to, the sleeve carrying the lamp. 7 inspection tube 20 (of Figure 1), which lies be- Fixing the inspection tube relatively to the we n e arms l2 and the p T .sleeve carrying thelarnp can be effected for infront end ofthe inspection tube 20 is made to 45 stance by a rod-like part whichis fast with the pe Order t0 provide t the m has i inspection tube and can be fixed to the sleeve by Sufficient room when withdrawn. means of a clamping screw. This rod may conj As mentioned hereinbefore, the instrument stitute at the same time the guide for the cathshown in the drawing ma it Possible that the eter carrying the cauter. cauter l2, l3, 13a assumes a protected position 5 To provide that the cauter has sufficient room when the catheter i5 and the inspection tube 20 when drawn back, it is advlsableto use an inspecare introduced conjointly into'thebody cavity and 1 'tiOIl tube Whose ro part ap S t y 0 the when this cavityis being inspected and that, dur-.

edge. I ing the operation, the cauter onlyrequires being the p y g d aw n .W e 1 pushed forward .more or less. To this effect, 55

introduced into the body cavity, an optical tube containing an eye-piece and an objective and introducible into said catheter, said sleeve, said catheter and said optical tube being concentric to each other, and a guide for axial displacement of said catheter and said sleeve relative to each other during the use of the instrument, said guide preventing rotations of said catheter and said sleeve relative to each other.

2. Inan instrument for electrosurgical treatment in body cavities, a sleeve, a lamp, a flexible lamp holder carrying said 1amp and fixed to said sleeve, a hollow catheter introducible into said sleeve, a cauter fixed to the catheter end to be introduced into the body cavity, an optical tube containing an eye-piece and an objective, said optical tube being introducible into said catheter and capable of being locked to said sleeve, said sleeve, said catheter and said optical tube being concentricto each other, and a guide for axial I displacement of said catheter and said sleeve relative to each other during the use of said in strument, said guide preventing rotations of said catheter and said sleeve relative to each other.

3. In an instrument for electrosurgical treatment in body cavities, a sleeve, a lamp, a flexible lamp holder carrying said lamp and fixed to said sleeve, a hollow catheter introducible into said sleeve, a cauter fixed to the catheter end to be introduced into the body cavity, an optical tube containing an eye-piece and an objective and introducible into said catheter, said sleeve, said catheter and said optical tube being concentric to each other, a rod-like part fast with the eyepiece end of said optical tube and capable of being locked to said sleeve, said rod-like part being a guide for said catheter.

4. In an instrument for electrosurgical treat- .ment in body cavities, a sleeve, a lamp, a flexible lamp holder carrying said lamp and fixed to said sleeve, a hollow catheter introducible into said sleeve, a cauter fixed to the catheter end to be introduced into-the body cavity, an optical tube containing an eye-piece and an objective and introducible into said catheter, said sleeve,

said catheter and said optical tube being concentric to eachother, and a guide for axial displacementzof said catheter and said sleeve relative to each other during the use of the instruv ment, said guide preventing rotations of said catheter and said sleeve relative to each other,

said cauter being bent sidewardly. v

5. In an instrument for electrosurgical treatment'inbody cavities, a sleeve, a lamp, a flexi-v b-le lamp holder carrying said lamp and fixed to said sleeve, a, hollow catheter introducible into said sleeve, a .caut'er fixed to the catheter end to be introduced into the body cavity, an optical tube containing an eye-piece and an objective and introducible into said catheter, said sleeve, said catheter and said optical tube being concentric to each other,,and a guide for axial displacement of said catheter and said sleeve relative to each other during the use'of the instru ment, said guide preventing rotations of said catheter and said sleeve relative to each other,

said optical tube *having at its forward end a restricted exterior diameter. v

i r GEORG WOLF. 

